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Finding the Fourth Proportional to 978,067.60, 1,467,101.40 and 971,846.80

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Solution

The fourth proportional to 978,067.60, 1,467,101.40 and 971,846.80 is: 1,457,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,067.60 : 1,467,101.40 = 971,846.80 : x
  2. Step 2: Convert to fraction form
    978,067.60/1,467,101.40 = 971,846.80/x
  3. Step 3: Cross multiply
    978,067.60x = 1,467,101.40 × 971,846.80
  4. Step 4: Simplify right side
    978,067.60x = 1,425,797,800,865.52
  5. Step 5: Solve for x
    x = 1,425,797,800,865.52/978,067.60
  6. Step 6: Final answer
    x = 1,457,770.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.